APA (7th ed.) Citation

Samuelson, P. (2011). Legally Speaking: Too Many Copyrights? Communications of the ACM, 54(7), 29. https://doi.org/10.1145/1965724.1965736

Chicago Style (17th ed.) Citation

Samuelson, Pamela. "Legally Speaking: Too Many Copyrights?" Communications of the ACM 54, no. 7 (2011): 29. https://doi.org/10.1145/1965724.1965736.

MLA (9th ed.) Citation

Samuelson, Pamela. "Legally Speaking: Too Many Copyrights?" Communications of the ACM, vol. 54, no. 7, 2011, p. 29, https://doi.org/10.1145/1965724.1965736.